Concept explainers
Given program:
import java.util.ArrayList;
import java.util.Collections;
//Declare PointDemo class
public class PointDemo
{
public static void main(String[] args)
{
//Define variables
Point p1 = new Point(2, 8);
Point p2 = new Point(7, 2);
Point p3 = new Point(3, 4);
Point p4 = new Point(1, 4);
//Declare variable points
ArrayList points = new ArrayList();
points.add(p1);
points.add(p2);
points.add(p3);
points.add(p4);
//Print the statement
System.out.println("Points in the list before sorting: " + points);
Collections.sort(points);
System.out.println("Points in the list after sorting: " + points);
}
}
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EBK BUILDING JAVA PROGRAMS
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